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Subjects
Science CBSE
Class 7
Respiration in organisms
Textbook questions II
19.
Short answer V
Exercise condition:
2
m.
Choose the correct answer:
1.
Which gas present in air is essential for aerobic respiration?
Oxygen
Carbondioxide
Nitrogen
Hydrogen
2.
What is the role of oxygen during respiration? Complete the equation.
Glucose
+
Oxygen
→
_____
+
Water
+
Energy
Helium
Nitrogen
Oxygen
Carbondioxide
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